49019017 has 4 divisors (see below), whose sum is σ = 49036356. Its totient is φ = 49001680.

The previous prime is 49018999. The next prime is 49019081. The reversal of 49019017 is 71091094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71091094 = 2 ⋅35545547.

It can be written as a sum of positive squares in 2 ways, for example, as 15968016 + 33051001 = 3996^2 + 5749^2 .

It is a cyclic number.

It is not a de Polignac number, because 49019017 - 2⁷ = 49018889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49019017.

It is not an unprimeable number, because it can be changed into a prime (49019317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3334 + ... + 10447.

It is an arithmetic number, because the mean of its divisors is an integer number (12259089).

Almost surely, 2^49019017 is an apocalyptic number.

It is an amenable number.

49019017 is a deficient number, since it is larger than the sum of its proper divisors (17339).

49019017 is a wasteful number, since it uses less digits than its factorization.

49019017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17338.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 49019017 is about 7001.3582253731. The cubic root of 49019017 is about 365.9779043466.

The spelling of 49019017 in words is "forty-nine million, nineteen thousand, seventeen".